Question

вычислите: 15,7*3,09+15,7*2,91; 4,03*27,9-17,9*4,03.

Answer 1

15.7 * 3.09 + 15.7 * 2.91= 15.7 ( 3.09+2.91) = 15.7 * 6= 94.2
4.03*27.9 - 17.9 * 4.03 = 4.03 * (27.9 - 17.9 ) = 4.03 * 10 = 40.3